From a175314c3e5827eb193872241446f2f8f5c9d33c Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 4 May 2024 20:07:14 +0200 Subject: Adding upstream version 1:10.5.12. Signed-off-by: Daniel Baumann --- wsrep-lib/src/gtid.cpp | 90 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 wsrep-lib/src/gtid.cpp (limited to 'wsrep-lib/src/gtid.cpp') diff --git a/wsrep-lib/src/gtid.cpp b/wsrep-lib/src/gtid.cpp new file mode 100644 index 00000000..af32d524 --- /dev/null +++ b/wsrep-lib/src/gtid.cpp @@ -0,0 +1,90 @@ +/* + * Copyright (C) 2018 Codership Oy + * + * This file is part of wsrep-lib. + * + * Wsrep-lib is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 2 of the License, or + * (at your option) any later version. + * + * Wsrep-lib is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with wsrep-lib. If not, see . + */ + +#include "wsrep/gtid.hpp" + +#include +#include +#include + +const wsrep::gtid wsrep::gtid::undefined_ = wsrep::gtid(); + +std::ostream& wsrep::operator<<(std::ostream& os, const wsrep::gtid& gtid) +{ + return (os << gtid.id() << ":" << gtid.seqno()); +} + +std::istream& wsrep::operator>>(std::istream& is, wsrep::gtid& gtid) +{ + std::string id_str; + std::getline(is, id_str, ':'); + long long seq; + is >> seq; + if (!is) + { + is.clear(std::ios_base::failbit); + return is; + } + try + { + // wsrep::id constructor will throw if it cannot parse the + // id_str. + gtid = wsrep::gtid(wsrep::id(id_str), wsrep::seqno(seq)); + } + catch (const wsrep::runtime_error& e) + { + // Formatting or extraction error. Clear the istream state and + // set failibit. + is.clear(std::ios_base::failbit); + } + return is; +} + +ssize_t wsrep::scan_from_c_str( + const char* buf, size_t buf_len, wsrep::gtid& gtid) +{ + std::istringstream is(std::string(buf, buf_len)); + is >> gtid; + // Some failure occurred + if (!is) + { + return -EINVAL; + } + // Whole string was consumed without failures + if (is.eof()) + { + return static_cast(buf_len); + } + // The string was not consumed completely, return current position + // of the istream. + return static_cast(is.tellg()); +} + +ssize_t wsrep::print_to_c_str( + const wsrep::gtid& gtid, char* buf, size_t buf_len) +{ + std::ostringstream os; + os << gtid; + if (os.str().size() > buf_len) + { + return -ENOBUFS; + } + std::strncpy(buf, os.str().c_str(), os.str().size()); + return static_cast(os.str().size()); +} -- cgit v1.2.3